Caribbean lobster are considered a delicacy the world over. But few restaurant customers know that these animals are vital to the ecosystem in the coral reefs and are often caught using environmentally damaging methods. Biologist Kim Ley-Cooper wants to change that. He's teaching fishermen in Mexico to catch lobster sustainably. At the same time he's collecting scientific data on the reefs.

More from Global 3000: http://www.dw.com/en/global-3000-the-globalization-program-2016-02-22/e-19022322-9798